HIN, Tsen Vui; RAMLI, Nur Ilyani. Design and Development of a Non-volatile Counter for Metered Dose Inhaler (MDI). International Journal of Integrated Engineering, [S. l.], v. 10, n. 3, 2018. Disponível em: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2103. Acesso em: 12 apr. 2026.